from tkinter import *

print ("введите начальную координату X")
X =int(input())
print ("введите начальную координату Y")
Y = int(input())
print("введите коэффициент увеличение N")
N =int(input())

coords = [0,0,10,0,10,10,20,10,20,20,0,20]

if N == 0 and X>=0 and X<=500 and Y>=0 and Y<=500:
  pass
else:
   if N  > 0 and 0*N+X>=0 and 0*N+Y>=0 and 20*N+X<=500 and 0*N+Y<=500:
     pass
   else:
         if N < 0 and 20*N+X>=0 and 20*N+Y>=0 and 0*N+X<=500 and 0*N+Y<=500:
            pass
         else:
             print('Размер фигуры превышает максимальный размер поля')
             exit()
root = Tk()
root.title("ИТ марафон")
root.geometry("500x500")

canvas = Canvas(bg="white", width=500, height=500)
canvas.pack(anchor=CENTER, expand=1)
canavas.create_polygon(coords [0] *N+X, coords[1] *N+Y,
                       coords [2] *N+X, coords[3] *N+Y,
                       coords [4] *N+X, coords[5] *N+Y,
                       coords [6] *N+X, coords[7] *N+Y,
                       coords [8] *N+X, coords[9] *N+Y,
                       coords [10] *N+X, coords[11] *N+Y)
            
root.mainloop()
